Both MCV and Videogamer have joined IGN in saying that they have heard rumours that new Nintendo hardware will be showcased at E3. Videogamer believe it to be a successor to the Wii U, while IGN and MCV have just been told its new hardware. MCV says they’re uncertain as to what form the hardware will take. The most likely bet is the Quality of Life platform that Nintendo is currently working on, but we won’t know for sure until next month. Whatever it is Videogamer seem to think games compatible with the hardware will also be playable at the show.

Won't be a new console, it's most likely their QoL platform. If it was anything to do with the Wii U it'd probably be a redesign or something; although I just can't see it. Honestly though it would be hilarious if they don't show any new hardware.